Pith Number

pith:WMCF2EOI

pith:2018:WMCF2EOIO2VEMC3X7GGAE24OJK

not attested not anchored not stored refs pending

The role of Dark Matter annihilation in the radio emission of the galaxy cluster A520

N.F. Khanye, P. Marchegiani, S. Colafrancesco

arxiv:1812.01445 v2 · 2018-12-01 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WMCF2EOIO2VEMC3X7GGAE24OJK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:52:15.149137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3045d11c876aa460b77f98c026b8e4abffa7bd909d2ff1cf5c82d8b6b17b8f3

Aliases

arxiv: 1812.01445 · arxiv_version: 1812.01445v2 · doi: 10.48550/arxiv.1812.01445 · pith_short_12: WMCF2EOIO2VE · pith_short_16: WMCF2EOIO2VEMC3X · pith_short_8: WMCF2EOI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WMCF2EOIO2VEMC3X7GGAE24OJK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b3045d11c876aa460b77f98c026b8e4abffa7bd909d2ff1cf5c82d8b6b17b8f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a6ffbeb65d16417e9fee216ed77fd96c37adfcc3498ec2c967371a13dd089a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-12-01T17:01:20Z",
    "title_canon_sha256": "ab8ec1482b105db3ef3ef6b6311d2822e248d7c5b210880e5a21ca8cb2d65d43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01445",
    "kind": "arxiv",
    "version": 2
  }
}